Intel Core i9 10980XE: FreeBSD 12.1 vs. GhostBSD 12.02 vs. DragonFlyBSD vs. Ubuntu Linux Benchmarks
Even when using GCC, the BSDs were slower than Ubuntu 20.04 for the Primesieve prime number benchmark.
Likewise, the simple C++ Smallpt benchmark was the fastest on Ubuntu 20.04 with the Core i9 Cascadelake-X processor.
Other CPU focused workloads tended to be mixed but overall the BSDs are at least more competitive with Linux in their current state compared to years ago.
DragonFlyBSD picked up a narrow win with its OpenSSL benchmark.